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The Depravity of the Human Heart in Scripture

The biblical understanding of the human "heart" refers to the core of a person's being, encompassing their volition, thought, and morality [4, 12]. Scripture consistently describes this inner core as inherently depraved, a condition often termed the "depravity of the human heart" [9].

This concept is rooted in early biblical accounts. Genesis 6:5 states that "every intention of the thoughts of their hearts" was "consistently and totally evil" [12]. This strong language emphasizes the pervasiveness, depth, and persistence of human wickedness, a condition that continued even after the flood (Genesis 8:21) [12]. The prophet Jeremiah famously declares, "The heart is deceitful more than anything else, and it is disastrous. Who can understand it?" [1]. This verse highlights the profound and inscrutable wickedness of the human heart [9, 15].

Jesus himself affirmed this understanding, stating that "out of the heart come evil thoughts, murders, adulteries, sexual sins, thefts, false testimony, and blasphemies" (Matthew 15:19) [2]. This indicates that outward sinful actions originate from an inward corrupt state [12].

Various biblical texts further elaborate on the characteristics of the unrenewed heart, describing it as:

The depravity of the heart is often linked to the Fall of Man, where disobedience led to humanity being born in sin and becoming "children of wrath" (Ephesians 2:3) [5]. This inherited corruption means that humans are "evil in heart" from birth [5]. The Jewish scholar Ramban (Nachmanides) notes on Genesis 8:21 that "the imagination of man's heart is evil from his youth," suggesting an inherent evil nature in early life [10].

This inherent wickedness manifests in various ways, including self-will and stubbornness, which are said to proceed from an evil heart [7]. Covetousness, too, originates from the heart and is considered a root of all evil [8]. The Bible condemns "stubbornness, sins of the heart," equating them to idolatry [11]. The concept of a "hardened heart" is also discussed, referring to a state of being insensible, impenitent, and stubborn, which can be both a natural condition due to corruption and an acquired state through persistent sin [13, 14].

Sources

  1. Jeremiah “Jeremiah 17:9 (LEB) — The heart is deceitful more than anything else, and it is disastrous. Who can understand it?”
  2. Matthew “For out of the heart come evil thoughts, murders, adulteries, sexual sins, thefts, false testimony, and blasphemies. -- Matthew 15:19”
  3. Torrey's Topical Textbook “Torrey's Topical Textbook: Heart, Character of the Unrenewed — Hateful to God -- Pr 6:16,18; 11:20. Full of evil -- Ec 9:3. Full of evil imaginations -- Ge 6:5; 8:21; Pr 6:18. Full of vain thoughts -- Jer 4:14. Fully set to do evil -- Ec 8:11. Desperately wicked -- Jer 17:9. Far from God -- Isa 29:13; Mt 15:8. Not perfect with God -- 1Ki 15:3; Ac 8:21; Pr 6:18. Not prepared to seek God -- 2Ch 12:14. A treasury of evil -- Mt 12:35; Mr 7:21. Darkened -- Ro 1:21. Prone to error -- Ps 95:10. Prone to depart from God -- De 29:18; Jer 17:5. Impenitent -- Ro 2:5. Unbelieving -- Heb 3:12. Blind -- Eph”
  4. Easton's Bible Dictionary “Easton's Bible Dictionary: Heart — According to the Bible, the heart is the centre not only of spiritual activity, but of all the operations of human life. "Heart" and "soul" are often used interchangeably (Deut. 6:5; 26:16; comp. Matt. 22:37; Mark 12:30, 33), but this is not generally the case. The heart is the "home of the personal life," and hence a man is designated, according to his heart, wise (1 Kings 3:12, etc.), pure (Ps. 24:4; Matt. 5:8, etc.), upright and righteous (Gen. 20:5, 6; Ps. 11:2; 78:72), pious and good (Luke 8:15), etc. In these and such passages the word "soul" could not ”
  5. Torrey's Topical Textbook “Torrey's Topical Textbook: Fall of Man, The — By the disobedience of Adam -- Ge 3:6,11,12; Ro 5:12,15,19. Through temptation of the devil -- Ge 3:1-5; 2Co 11:3; 1Ti 2:14. Man in consequence of Made in the image of Adam. -- Ge 5:3; 1Co 15:48,49. Born in sin. -- Job 15:14; 25:4; Ps 51:5; Isa 48:8; Joh 3:6. A child of wrath. -- Eph 2:3. Evil in heart. -- Ge 6:5; 8:21; Jer 16:12; Mt 15:19. Blinded in heart. -- Eph 4:18. Corrupt and perverse in his ways. -- Ge 6:12; Ps 10:5; Ro 3:12-16. Depraved in mind. -- Ro 8:5-7; Eph 4:17; Col 1:21; Tit 1:15. Without understanding. -- Ps 14:2,3; Ro 3:11; 1:31. ”
  6. Torrey's Topical Textbook “Torrey's Topical Textbook: Unbelief — Is sin -- Joh 16:9. Defilement inseparable from -- Tit 1:15. All, by nature, concluded in -- Ro 11:32. Proceeds from An evil heart. -- Heb 3:12. Slowness of heart. -- Lu 24:25. Hardness of heart. -- Mr 16:14; Ac 19:9. Disinclination to the truth. -- Joh 8:45,46. Judicial blindness. -- Joh 12:39,40. Not being Christ's sheep. -- Joh 10:26. The devil blinding the mind. -- 2Co 4:4. The devil taking away the word out of the heart. -- Lu 8:12. Seeking honour from men. -- Joh 5:44. Impugns the veracity of God -- 1Jo 5:10. Exhibited in Rejecting Christ. -- Joh 16:”
  7. Torrey's Topical Textbook “Torrey's Topical Textbook: Self-Will and Stubbornness — Forbidden -- 2Ch 30:8; Ps 75:5; 95:8. Proceed from Unbelief. -- 2Ki 17:14. Pride. -- Ne 9:16,29. An evil heart. -- Jer 7:24. God knows -- Isa 48:4. Exhibited in Refusing to hearken to God. -- Pr 1:24. Refusing to hearken to the messengers of God. -- 1Sa 8:19; Jer 44:16; Zec 7:11. Refusing to walk in the ways of God. -- Ne 9:17; Ps 78:10; Isa 42:24; Jer 6:16. Refusing to hearken to parents. -- De 21:18,19. Refusing to receive correction. -- De 21:18; Jer 5:3; 7:28. Rebelling against God. -- De 31:27; Ps 78:8. Resisting the Holy Spirit. -- ”
  8. Torrey's Topical Textbook “Torrey's Topical Textbook: Covetousness — Comes from the heart -- Mr 7:22,23. Engrosses the heart -- Eze 33:31; 2Pe 2:14. Is idolatry -- Eph 5:5; Col 3:5. Is the root of all evil -- 1Ti 6:10. Is never satisfied -- Ec 5:10; Hab 2:5. Is vanity -- Ps 39:6; Ec 4:8. Is inconsistent In saints. -- Eph 5:3; Heb 13:5. Specially in ministers. -- 1Ti 3:3. Leads to Injustice and oppression. -- Pr 28:20; Mic 2:2. Foolish and hurtful lusts. -- 1Ti 6:9. Departure from the faith. -- 1Ti 6:10. Lying. -- 2Ki 5:22-25. Murder. -- Pr 1:18,19; Eze 22:12. Theft. -- Jos 7:21. Poverty. -- Pr 28:22. Misery. -- 1Ti 6:10”
  9. Jeremiah (Protestant academic) “Tyndale House on Jeremiah 17:9: 17:9-10 By nature, the human heart is deceitful and desperately wicked. Only the Lord really knows how bad it is.”
  10. Sefaria (Jewish (Kabbalistic/Philosophical)) “Ramban (Nachmanides) on Genesis 8:21: FOR THE IMAGINATION OF MAN’s HEART IS EVIL FROM HIS YOUTH. He ascribes merit to men because by their very creation they have an evil nature in their youthful days but not in their mature years. If so, for these two reasons, 178 First, that by his very creation, man’s heart is evil, and second, that this evil persists only when he is young but not when he matures. Therefore, for these two reasons it is not proper that every living thing be smitten on account of man. it is not proper to smite every living thing. The reason for the prefix mem [which signifies”
  11. 1 Samuel (Protestant academic) “Tyndale House on 1 Samuel 15:23: 15:23 Rebellion . . . and stubbornness, sins of the heart, are as bad as the sinful practices of idolatrous pagans. • Scripture condemns witchcraft (see study note on Deut 18:10).”
  12. Genesis (Protestant academic) “Tyndale House on Genesis 6:5: 6:5 everything they thought or imagined (literally every intention of the thoughts of their hearts): In the Old Testament, the heart is the core of volition, thought, and morality (see Prov 4:23). Wicked actions stem from a corrupt inner life. • consistently and totally evil: Strong language captures the pervasiveness, depth, and persistence of human wickedness. Human nature continued to be corrupt even after the flood (see Gen 8:21).”
  13. Psalms (Baptist/Reformed) “John Gill on Psalms 95:8: Harden not your hearts,.... Against Christ, against his Gospel, against all the light and evidence of it. There is a natural hardness of the heart, owing to the corruption of nature; and an habitual hardness, acquired by a constant continuance and long custom in sinning; and there is a judicial hardness, which God gives men up unto. There is a hardness of heart, which sometimes attends God's own people, through the deceitfulness of sin gaining upon them; of which, when sensible, they complain, and do well to guard against. Respect seems to be had here to the hardness ”
  14. Hebrews (Baptist/Reformed) “John Gill on Hebrews 3:8: Harden not you hearts,.... There is a natural hardness of the heart; the heart of man is like a stone, destitute of spiritual life, motion, and activity; it is senseless, stupid, impenitent, stubborn, and inflexible, on which no impressions can be made, but by powerful grace: and there is an acquired, habitual, and voluntary hardness of heart, to which men arrive by various steps; as entertaining pleasing thoughts of sin; an actual commission of it, with frequency, till it becomes customary, and so habitual; an extenuation or justification of it, and so they become ha”
  15. Jeremiah (Baptist/Reformed) “John Gill on Jeremiah 17:9: The heart is deceitful above all things,.... This is the source of the idolatry and creature confidence of the Jews, sins which were the cause of their ruin; and though what is here said is particularly applicable to their hearts, yet is in general true of the heart of every man; which is "deceitful", and deceiving; and puts a cheat upon the man himself whose it is: it deceives him with respect to sin; it proposes it to him under the notion of pleasure; it promises him a great deal in it, but does not yield a real pleasure to him; it is all fancy and imagination; a ”
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